AM NEVOIE URGENT! DAU COROANA!
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Răspuns:
Explicație:
FeCl3 Fe NO=+3 Cl NO =-1
SnCl2 Sn N.O=+2 Cl NO=-1
SnCl4 Sn NO= +4 Cl NO=-1
BaO Ba NO=+2 O NO=-2
MnCl2 Mn NO =+2 Cl NO=-2
KMnO4 K NO=+1 Mn NO=+7 O NO=-2
2, HClO Cl N.O=+1
HClO2 NO =+3
HClO3 NO=+5
HClO4 NO=+7